class XiaoJie{
    public sex:string
    protected name: string;
    private  age: number;
    constructor(sex:string,name:string,age:number){
        this.sex = sex
        this.name = name
        this.age = age 
    }
    public say(){
        console.log('小哥哥来玩啊')
    }
    private sayOh(){
        console.log('小哥哥不要停')
    }
}